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narran spares arianna 59ml' J. @@CHRAN, @E ST. JUS, MSSGRE, ASSIGNOR T0 MARtN-LUll/IAG'H MAN'UFCTURlNG COMPANY, 0F ST. LGUES, NHSSUURI, REGRATQN OE' WHERE.

incassa..

Application iled April t, 199.

panying drawings, forming a part of this specitication.

lvly invention relates to a means tor supplying explosive mixture to internal combus-` tion engines and through the medium of which l provide for the delivery of the explosive mixture in a purely' vaporous or gaseous form, the said means providing against the delivery of liquid hydrocarbons to the intake leading from the carburetor to the engine cylinders. ll/.ly explosive mixture supply means further provides for a complete mixture oi2 hydrocarbon vapors and air, and the delivery oi such mixture in a uniform condition to the engine cylinders.

Figure l is an enlargedv side elevation partly in section of a fragment of a carbureter, the intake pipeleading therefrom and the parts oi my uel supplying means directly associated with said carbureter and intake pipel Fig; 2 is an enlarged cross section taken on line 2 2, lig. l.

Fig. 3 is an enlarged end View of one of the blades of the fan wheel in my tuel sup'- plying means.

A designates a fragment of acarbureter and B an intake pipe leading to the cylinders of an internal combustion engine. The carburetor A is provided with the usual throttle lever C. rllhe parts thus far described are' common to internal combustion engines in general and no invention for said parts, per se, is herein claimed.

l designates a tubular body interposed between the carbureter A and intake pipe B and having air-tight connection with said members. 'l`his 'body is provided with an aperture 2 providing communication between the carbureter and the intake pipe and through which the mixture to supply the cylinders 1of the engine is drawn. The aperture 2 being slightly larger in diameter than the internal diameter of said intake pipe. A cross piece 3, spanning the aperture in the body l serves to support an arbor e located centrally ot' said aperture and extending Specicaton of Letters Patent.

itatented May 2'?, iltltle serial no. asas-seo.

longitudinally thereof. A tan wheel 5 rotatably mounted on said arbor has blades extending into close proximity with the wall oi' the aperture 2.

The blades oi' the tan are arranged in angular relation to the axis orp said fan wheel to insure rotation'oix said ian wheel by the passage therethrough of the vapors from the carbureter to the intake pipe. rlfhat is to say, l have found that it is a requisite part of my invention that the blades have an angularity of approximately ld at the hub with respect to the axis or the fan wheel and approximately 850 at. the periphery orn the blades. These blades are spaced relatively wide apart and provide a passageway of approximately l0 per cent. of the total opening in. said tubular member for the vapors passing to the cylinders of the engine. By this means l do `not obstruct enough area to prevent the free passage or" the moving vapors through said tubular member. By making the blades of relatively large depth ll accomplish the beatiinr up and thorough commingling 0i' the vapors passing through said fan. rlhe peripheries or these blades are in close proximity to the internal wall of the aperture f2 so that all Ithe vapors eiatering the intake pipe B are necessarily subjected to the beating and mixing action of the blades of the fan wheel By virtue of the angular relation of the blades, as .above described, to the axis of the fan wheel7 Varying from approximately 15 at the hub to approximately 35 at the peripher the vapors are so acted upon by said blades as to precipitate and return to the carbureter any liquid carried in suspension by said vapors. rll`his action is also facilitated by the depth of the blades which thereby tend to act upon all the vapors passing through said fan.

l/Vhen an internal combustion engine equipped with the parts thus farl described is in use, the suction in the intake pipe B acts to rotate the fan wheel 5 and said tan wheel, due to the angular shape or its blades serves the triple function ot' breaking upV the hydrocarbon vapors drawn into the aperture 2., thoroughly mixing the vapors Yof the hydrocarbons and tlre air passing through the canbureter therewith, and acts to restrain the liquid in the hydrocarbons from entering the intake pipe; consequently the mixture which passes through the intake pipe is ias one composed of hydrocarbon vapors and air only commingled, and is one susceptible of more complete combustion when it enters the engine cylinders and by which the engine may be more perfectly ope-rated than it can be Where the mixture is in a liquid or partially liquid state.

6 designates a check valve in the tubular body 2 and Which is normally closed but is adapted to open to supply additional air from the atmosphere tol the aperture 2 and the intake pipe B- whenever the engine requires a supply of vapor additional to that supplied by the carbureter alone.

The herein-described means for supplying explosive mixture or fuel to internal combustion engines provides for the delivery of a more perfect explosive mixture due to the thorough mixing operation and the retardation of the liquid hydrocarbons; it therefore enables the engine to be furnished with an increase of vapor with better combustion and with a lessening of the amount of carbon produced.' Due to the more perfect mixture the engine may be started more easily.

I claim: p

The combination `with the carbureter and intake pipe of an internal combustion engine, of a tubular member interposed between said carbureter and intake pipe, a fan wheel in said tubular member, the blades of which at their periphery are in close proximity to the internal Wall of said tubular member, said blades having an angularity wit-h respect to the axis of said fan wheel of approximately 15 at the hub to approximately at the periphery, said blades being spaced apart to provide approximately 40 per cent. of unrestricted passageway from said carbureter to said intake pipe and said p JOHN J. COCHRAN. 

